/*
 * Copyright 2013 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.core.client.js;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

//Copied from gwt-user to avoid that dependency
/**
 * JsType is used to describe the interface of a Javascript object, either one
 * that already exists from the external Javascript environment, or one that
 * will be accessible to the external Javascript environment. Calls to methods
 * on interfaces marked with this annotation are treated specially by the GWT
 * compiler for interoperability purposes. Such methods need not be backed by an
 * Overlay type implementation, the GWT compiler will assume that a JS method on
 * the prototype of the underlying reference will match the name of the method
 * on this interface.
 * <p>
 * Furthermore, if the JsType is marked with a prototype reference, then
 * concrete implementations of the class emitted by the GWT compiler will use
 * the specified prototype as opposed the the ordinary one (e.g.
 * java.lang.Object).
 * <p>
 * JsTypes act like JavaScriptObject in terms of castability, except when a
 * prototype is specified, in which case, cast checks and instanceof checks will
 * be delegated to the native JS instanceof operator.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Documented
public @interface JsType {
	String prototype() default "";

	boolean isNative() default false;
}
